/*
 *   Copyright 2021 zzh
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 */

package com.aduib.boot.common.event;

import java.util.List;
import java.util.function.Predicate;

/**
 * @description: EventMulticaster
 * @author: zzh
 * @date: 2021/9/17 13:16
 */
public interface EventMultiCaster {

  /**
   * 添加事件处理器
   *
   * @param eventListener
   */
  <T> EventMultiCaster addEventHandler(T eventListener);

  /**
   * 添加事件处理器集合
   *
   * @param eventListeners
   */
  <T> EventMultiCaster addEventHandlers(List<T> eventListeners);

  /**
   * 带条件移除事件处理器
   *
   * @param predicate
   */
  EventMultiCaster removeEventHandler(Predicate<?> predicate);

  /** 移除所有事件处理器 */
  EventMultiCaster removeEventHandlers();
  /**
   * 广播事件
   *
   * @param event
   * @param <T>
   */
  default <T> void multicastEvent(T event) {
    publishEvent(event);
  }

  /**
   * 推送事件
   *
   * @param <T>
   * @param event
   * @return
   */
  <T> EventMultiCaster publishEvent(T event);
}
